 # -*- coding: utf-8 -*-
from part import *
from material import *
from section import *
from assembly import *
from step import *
from interaction import *
from load import *
from mesh import *
from optimization import *
from job import *
from sketch import *
from visualization import *
from connectorBehavior import *

import math

mdb.models['Model-1'].Part(dimensionality=THREE_D, name='Part-1', type=DEFORMABLE_BODY)

# 胞元几何形状参数
D = 10.0 # 外接圆直径
R = 0.5 * D # 外接圆半径

# 阵列数目
X_N = 3
Y_N = 5

# 阵列间距
X_SPACE = 3 * R
Y_SPACE = 3 ** 0.5 * R

def sin(theta):
  return math.sin(theta / 180.0 * math.pi)

def cos(theta):
  return math.cos(theta / 180.0 * math.pi)


# 生成胞元
def generateCellUnit():

  # 六边形的6个顶点(最右侧为编号1，逆时针编号)
  point_1 = (R * cos(0), R * sin(0), 0)
  point_2 = (R * cos(60), R * sin(60), 0)
  point_3 = (R * cos(120), R * sin(120), 0)
  point_4 = (R * cos(180), R * sin(180), 0)
  point_5 = (R * cos(240), R * sin(240), 0)
  point_6 = (R * cos(300), R * sin(300), 0)

  # 组成六边形的6条线段
  line_1 = (point_1, point_2)
  line_2 = (point_2, point_3)
  line_3 = (point_3, point_4)
  # 4，5，6号线段需注意端点的前后顺序
  # 保持与前三条线段方向一致，便于后面去除重复线段
  line_4 = (point_5, point_4)
  line_5 = (point_6, point_5)
  line_6 = (point_1, point_6)

  lines = [line_1, line_2, line_3, line_4, line_5, line_6]

  return lines

# 沿x轴、y轴阵列线段
def arrayCellUnit(x_n, y_n, cellUnitLines):

  X_arrayLines = []
  Y_arrayLines = []

  # 胞元沿x轴进行阵列
  for i in range(x_n):

    for item in cellUnitLines:

      point_x_1 = (item[0][0] + X_SPACE * i, item[0][1], item[0][2])
      point_x_2 = (item[1][0] + X_SPACE * i, item[1][1], item[1][2])
      
      X_arrayLines.append((point_x_1, point_x_2))
  
  # 胞元沿y轴进行阵列
  for j in range(y_n):

    for each in X_arrayLines:

      point_y_1 = (each[0][0], each[0][1] + Y_SPACE * j, each[0][2])
      point_y_2 = (each[1][0], each[1][1] + Y_SPACE * j, each[1][2])

      Y_arrayLines.append((point_y_1, point_y_2))

  return Y_arrayLines

# 移动线段
def move(offset_x, offset_y, lines):

  res = []

  for line in lines:
    point_1 = (line[0][0] + offset_x, line[0][1] + offset_y, 0)
    point_2 = (line[1][0] + offset_x, line[1][1] + offset_y, 0)
    res.append((point_1, point_2))

  return res

# 生成整体结构
def generateStructure():

  cellUnitLines = generateCellUnit()
  arrayLines_1 = arrayCellUnit(X_N, Y_N, cellUnitLines)

  offset_x = 1.5 * R
  offset_y = 0.5 * 3 ** 0.5 * R
  
  # 偏移六边形，进行第二次阵列
  movedCellUnitLines = move(offset_x, offset_y, cellUnitLines)
  arrayLines_2 = arrayCellUnit(X_N - 1, Y_N - 1, movedCellUnitLines)

  lines = arrayLines_1 + arrayLines_2

  # 去除重合的线段
  lines = list(set(lines))

  return lines

lines = []

lines = generateStructure()

lines_tuple = tuple(lines)

print(" ")

# 打印参数
print("D: %s " % D)
print("X_N: %d " % X_N)
print("Y_N: %d " % Y_N)

mdb.models['Model-1'].parts['Part-1'].WirePolyLine(mergeType=IMPRINT, meshable=ON, 
    points=lines_tuple)

mdb.models['Model-1'].parts['Part-1'].Set(edges=
    mdb.models['Model-1'].parts['Part-1'].edges.getSequenceFromMask(('[#3 ]', 
    ), ), name='Wire-2-Set-1')


# Save by cgp on 2021_06_01-17.37.10; build 6.14-5 2015_08_18-22.37.49 135153